D. To change the direction of the current. 相关知识点: 试题来源: 解析 C。解析:保险丝在电路中的主要作用是防止过载。选项 A,保险丝不能增加电压。选项 B,测量电流的是电流表等仪器。选项 D,保险丝不能改变电流方向。阅读时要抓住“fuse”“electrical circuit”等关键词理解其在电路中的作用。
Answer to: What is used in an electrical circuit to prevent a short circuit? By signing up, you'll get thousands of step-by-step solutions to your...
one pole of each port in a circuit is connected to a common node such as a ground plane. It is assumed in the circuit analysis that all these common poles are at the same potential and that current is sourced to or sunk into the ground plane that ...
Ohm's law says that in an electrical circuit, the current passing through a resistor between two points, is related to the voltage difference between the two points, and inversely related to the electrical resistance between the two points. This relation is shown in the following pee Where I ...
When an electrical potential difference is applied between two points in a conductive medium, an electric current starts flowing from higher potential to lower potential. The higher the voltage or potential difference, the more the current flows between two points. If two points in a circuit are ...
Current is the rate at which electrons flow past a point in a complete electrical circuit. At its most basic,current = flow. Anampere(AM-pir), oramp, is the international unit used for measuring current. It expresses the quantity of electrons (sometimes called "electrical charge") flowing ...
a tiny silicon chip with an integrated circuit that is frequently used in computers or other electrical devices. The general term "chip" refers to semiconductor products and components. It serves as the wafer-sized integrated circuit's (IC) carrier. Integrated circuits are found i...
There are 2 types of Electric Current – AC (Alternating Current and DC (Direct Current. Electrical currentis the flow of charged particles. It is similar to flow of water molecules in a river. AC and DC are ways of flow of current an electrical circuit.Electric charge or current can flow...
What is an integrated circuit? What is the main circuit board of a system unit? What is the current (\text{I}_{rms}) flowing through a closed circuit if R = 5.75 megaohms and \text{V}_{rms} = 3.5 V? A device that does work in an electrical circuit is called ...
Open Circuit Anopen circuitoccurs when a disconnection in any part of an electrical circuit stops the flow of current. Closed Circuit If there is no discontinuity in the circuit and current can flow from one part to another part of the circuit, the circuit is said to beclosed circuit. ...